area, and eventually the entire Front Range. In 1989, the station moved its offices and studios to Denver, originally at a facility on Stout Street, and then to a building on North Federal Boulevard. Finally in 1994, the station moved its operations into the new Five Points Media Center facility on Welton Street in the city's Five Points neighborhood. KBDI purchased the building outright in 2006. In the late 1990s, as the station expanded its reach throughout Colorado via a network of low-powered repeaters and carriage on cable systems, the station phased out its call letters from its branding and started identifying as Colorado Public Television (or CPT12), ultimately applying the brand full-time in 2010. Today, the KBDI call letters are almost never mentioned on-air, with the exception of FCC-mandated station identifications. The brand also extended to its parent company in 2005, when the Front Range Educational Media Corporation was renamed as Colorado Public Television, Inc. In 2004, KBDI entered into a multimedia partnership with CBS owned-and-operated station KCNC-TV (channel 4) and the Rocky Mountain News to jointly produce Colorado Decides, providing coverage of statewide debates, political analysis and election coverage. KBDI is a member of PBS' Program Differentiation Plan (PDP), previously known as the "Beta" group; as the Denver area's secondary PBS member station, it only airs 25% of the PBS network schedule. Digital television Digital channels The station's digital signal is multiplexed: Until 2019, KBDI-TV aired its main channel in the 480i resolution format, making it the largest PBS station by market size that did not broadcast in high definition. KBDI launched its digital signal on VHF channel 13 in 2003. With the sign-on of its digital signal, the station began carrying CPT12+ on digital subchannel 12.2, now featuring a mix of variety, instructional and public affairs programming from 4:00 a.m. to 4:00 p.m. and First Nations Experience (FNX) from 4:00 p.m. to 4:00 a.m. In 2008, the station began carrying the international programming service MHz Worldview on digital channel 12.3, On January 12, 2016, the station began broadcasting the programming service NHK World on digital channel 12.4. Analog-to-digital conversion KBDI-TV shut down its analog signal, over VHF channel 12, on February 17, 2009, the original date in which full-power television stations in the United States were to transition from analog to digital broadcasts under federal mandate. The station's digital signal remained on its pre-transition VHF channel 13.